Swing arm clamp



FIG. 1 is perspective view of a swing arm clamp showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a first side elevational view thereof;

FIG. 4 is a front end elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a second side elevational view thereof.

The dash-dash broken lines shown in in the drawing figures depict a clamp handle and parts of the swing arm clamp that form no part of the claimed design. The dash-dot-dash broken lines depict the bounds of the claim in FIG. 3, FIG. 5, and FIG. 6, and form no part of the claimed design. 

CLAIM The ornamental design for a swing arm clamp, as shown and described. 